We're dividing 3449827 by 129 
The aim is to understand the frequency of 129 in 3449827.

Let's proceed to step 1:
129 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 129

Going ahead to step 2:
The number 129 fits into 34 0 times, leaving a remainder of 34.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 34 and we're left with 34.
Append the next digit (4) from the dividend to 34 and continue with: 344 / 129

Advancing to step 3:
If we divide 344 by 129, we get 2 and a remainder of 86.
The next digit of our result is 2. 
Result so far: 2.0
If we take 258 away from 344, we end up with 86.
Append the next digit (9) from the dividend to 86 and continue with: 869 / 129

On to step 4:
129 goes into 869 6 times with a remainder of 95.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
The remainder is 95 after subtracting 774 from 869.
Grab the next digit (8) from the dividend, add it to 95, then carry on: 958 / 129

Going ahead to step 5:
129 goes into 958 7 times with a remainder of 55.
The number 7 becomes the next digit in our result. 
Result so far: 267.0
Subtracting 903 from 958 leaves us with 55.
Take the next digit (2) from the dividend and append it to 55, then repeat: 552 / 129

Advancing to step 6:
129 can be fit into 552 4 times, resulting in a remainder of 36.
The next digit of our result is 4. 
Result so far: 2674.0
Deduct 516 from 552 and we're left with 36.
Include the next digit (7) from the dividend after 36, then repeat: 367 / 129

On to step 7:
If we divide 367 by 129, we get 2 and a remainder of 109.
Write down 2 as next digit of the result. 
Result so far: 26742.0
The remainder is 109 after subtracting 258 from 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Step 8:
If we divide 1090 by 129, we get 8 and a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 26742.8
If we subtract 1032 from 1090, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 9:
129 can be fit into 580 4 times, resulting in a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 26742.84
Subtracting 516 from 580 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 10:
129 goes into 640 4 times with a remainder of 124.
The next digit of our result is 4. 
Result so far: 26742.844
Subtracting 516 from 640 leaves us with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

The quotient of the division is 26742.844, and the remainder is 0.0124.